CASIO G-Shock MUDMASTER Mens Japan Import GWG-1000-1A3

4.7 4.7 out of 5 stars 695 ratings

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Product specifications

Watch Information
Brand, Seller, or Collection Name Casio
Model number GWG-1000-1A3JF
Part Number GWG-1000-1A3JF
Model Year 2015
Item Shape Round
Clasp Tang Buckle
Case material Resin
Case diameter 5.6 centimeters
Case Thickness 18 millimeters
Band width 5.6 centimeters
Band Color Green
Special features Shock Resistant, Water Resistant, Timer, Stopwatch, Alarm, Calendar, Barometer, Compass
Item weight 4.2 ounces
Movement Japanese Quartz
Water resistant depth 656.1599731445312
Product Warranty For warranty information about this product, please click here

Product Description

This new MUDMASTER model was created especially for this whose work takes it into areas where piles of rubble, dirt, and debris are present.

Product details

  • Is Discontinued By Manufacturer ‏ : ‎ No
  • Product Dimensions ‏ : ‎ 2.34 x 0.71 x 2.21 inches; 4.2 ounces
  • Item model number ‏ : ‎ GWG-1000-1A3JF
  • Department ‏ : ‎ mens
  • Batteries ‏ : ‎ 1 CR2 batteries required.
  • Date First Available ‏ : ‎ July 31, 2015
  • Manufacturer ‏ : ‎ CASIO
  • ASIN ‏ : ‎ B012FC4SCG
  • Customer Reviews:
    4.7 4.7 out of 5 stars 695 ratings

Customer reviews

4.7 out of 5 stars
4.7 out of 5
695 global ratings

Customers say

Customers like the size, quality and accuracy of the watch. For example, they mention it's big, has a digital part that's not too small and the numbers are big and easy to see. That said, opinions are mixed on the value, brightness and readability.

AI-generated from the text of customer reviews

111 customers mention111 positive0 negative

Customers are satisfied with the quality of the watch. They mention it's an impressive piece of gear, a solid watch, and dependable. Some say it'll work great with no problems.

"...your wrist that provides value disproportionate to its size, it is dependable and does it all while looking good!..." Read more

"...It also works well while wearing gloves. The large knurled buttons work and work well.One last note. It's big, real big...." Read more

"...Feature list is whopping, with radio controlled world time, stopwatch, timer, alarm, barometer, altimeter, temperature, compass, and it can even..." Read more

"...All the normal functions are there as well the world time, stopwatch, timer (which would have been better if it was a 24hr), alarms, and it also has..." Read more

50 customers mention50 positive0 negative

Customers find the watch handsome, nice, and solid. They say it has killer looks to boot. Customers also say it's big, bold, and old school. They mention that the olive resin strap provides a nice contrast to the black watch. Overall, customers are satisfied with the appearance of the product.

"...This may be the last watch I buy. It is a beautiful, handsome watch that looks fantastic and is a joy to wear...." Read more

"...First, let me talk about the aesthetics. It is a very handsome watch and obviously well made. It is a considerable step up in quality...." Read more

"...lot of research on the various models, and went with this due to sapphire crystal, tough solar movement, analog plus digital display, radio..." Read more

"...This watch is function, function, function, with killer looks to boot." Read more

41 customers mention30 positive11 negative

Customers like the size of the watch. They say it is large in diameter and tall, but it is lightweight and wears well. The digital part is not too small and the numbers are big and easy to see. The watch is proportioned well and fits better than expected for its size.

"...Somehow it does not have an unusually large appearance on the wrist...." Read more

"...One last note. It's big, real big. Make sure that you are the kind of person that can wear a big, thick watch...." Read more

"...I like large watches, and this one is pretty massive, but, due to the design, fits comfortably, and of course, due to materials, is very light in..." Read more

"...barometer, and compass — but that comes at the cost of being extra bulky...." Read more

36 customers mention29 positive7 negative

Customers like the comfort of the watch. They mention that it is lightweight, and wears very comfortably. The features are great, and the feel on their wrist is great. The build is rock-solid, and it hugs the wrist nicely. It's perfect for every day wear, or camping, fishing, and hiking. The buttons are big and it's nice to press them.

"...I am somewhat slim boned and do not have large wrists and this watch wears just fine, not a problem at all...." Read more

"...this watch is that even though it is big, it hugs the wrist nicely and doesn't hang over the wrist...." Read more

"...watches, and this one is pretty massive, but, due to the design, fits comfortably, and of course, due to materials, is very light in weight...." Read more

"...I have a 7 inch wrist and it fits just fine, I have even seen people 6.5 inch wrists wear this watch...." Read more

16 customers mention16 positive0 negative

Customers are satisfied with the accuracy of the watch. They mention that the altimeter, barometer, and compass are very accurate. They also appreciate the triple sensor, which seems to be very accurate, with the exception of the thermometer.

"...It is as rugged as a watch can be so it is a survivor. It has a compass and other helpful functions crammed into something you wear on your wrist..." Read more

"...time, stopwatch, timer, alarm, barometer, altimeter, temperature, compass, and it can even record various stats in relation to elevation changes...." Read more

"...It will ALWAYS be accurate. All you have to do is wear it...." Read more

"...The compass is right though as far as I’ve needed, would I trust it to the single degree to save my life?..." Read more

57 customers mention37 positive20 negative

Customers are mixed about the readability of the watch. Some mention that it's very intuitive, easy to read, and comfortable. The numbers are big and easy to see, and the lumination on the hands is awesome. However, others say that the reverse LCD is a bit hard to read and the digital display is hard to see in low light due to the black color.

"...Despite all of these elements, it is very simple to operate and a single reading of the manual was enough to become familiar with how it all..." Read more

"The reviews are true. It's big, unapologetic, and all GShock. It's far more comfortable than it looks and it's lighter than it looks as well...." Read more

"...It does take a little bit of recalibrating because it is set up from Japan so you’ll have to change things into feet instead of meters and..." Read more

"Very nice watch. Can actually read the digital read-out. Thought the face would be a little bigger. Definitely a keeper." Read more

21 customers mention13 positive8 negative

Customers are mixed about the value of the watch. Some mention it's great value for the money, while others say it'd be a great buy if it was less expensive.

"...This one came with a pretty big price tag, but worth every cent. Look for deals if possible, but beware of fakes." Read more

"...It is expensive but that pain only lasts a short time and then you have the pleasure of the watch for years...." Read more

"...The import is the only one that offers sapphire glass. It is worth the extra money for this one reason...." Read more

"...This watch is worth every penny and is in another league from the other models that I own. The lume is great and stays all night long...." Read more

17 customers mention9 positive8 negative

Customers are mixed about the brightness of the watch. Some mention that the light in the evening is excellent and clear to see the time, while others say that it barely illuminates the watch and doesn't illuminate the digital display enough.

"...World Time, check.Sapphire Crystal, check.Killer Lume. check.LED light, check.Stopwatch, check...." Read more

"...The LCD screen is exactly as everyone has said. It is dim and I included a photo at a typical viewing distance so you could see...." Read more

"...Also it can turn on you backlight when you flip you wrist, beware it can drain battery, it may have a brightness setting with may help, many people..." Read more

"...The backlight is near useless. The light barely illuminates the watch and doesn’t illuminate the digital display enough...." Read more

A beast on your wrist
5 Stars
A beast on your wrist
I have had this watch for some time now and I definitely have played around with it. I have taken this thing on some adventures that’s for sure. This watch can truly take a beating with how overbuilt it is. I never have to worry about it failing me wherever I may be.This is definitely a big watch and still sits nicely on my wrist. I have a 7 inch wrist and it fits just fine, I have even seen people 6.5 inch wrists wear this watch. Despite how big it is I can put it on and completely forget about it until I need it. I don’t wear suits and I don’t care if a long sleeve or a jacket sleeve doesn’t cover it up. I want to see the watch and use it so in that regard it isn’t an issue.The time is always spot on with the atomic multi band timekeeping. I have one G-Shock that doesn’t have this and I don’t know why they didn’t include it as well as tough solar. But I love that this one does have the tough solar. It gives me comfort knowing every time I look at the watch it will always be on.ABC functions are always nice to have as well. I use the compass and the barometer quite often. I really don’t have much of a need for the altimeter but it’s nice that it’s there.All the normal functions are there as well the world time, stopwatch, timer (which would have been better if it was a 24hr), alarms, and it also has the time received as well. A big plus is the battery indicator as well.I don’t think anyone would be disappointed with this watch in their collection.
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Top reviews from the United States

Reviewed in the United States on March 12, 2022
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Bob
5.0 out of 5 stars Truly great watch
Reviewed in the United States on March 12, 2022
There isn’t much to say about this watch that hasn’t already been said. If you are considering it you probably have read reviews and maybe watched some video reviews, I know I did before buying it. It is expensive but that pain only lasts a short time and then you have the pleasure of the watch for years. In the immortal words of Ferris Bueller, “…if you have the means, I highly recommend picking one up.”

For those who are concerned about the size of the watch, fear not. Somehow it does not have an unusually large appearance on the wrist. I am somewhat slim boned and do not have large wrists and this watch wears just fine, not a problem at all. I upgraded from a GG 1000 because I wanted the solar power and multi band 6 and there does not feel like any difference in the wearing so if you are already a G Shock initiate, this watch will be familiar and if you are new to it, definitely jump straight into the deep end without reservation.

The LCD screen is exactly as everyone has said. It is dim and I included a photo at a typical viewing distance so you could see. If there is a downside to the watch this is it. I held off because of this and when the 2000 came out and also had a negative display I figured they just aren’t going to make this watch with a positive display so I bought the original model which I liked better than the 2000 and I am glad I did.

This may be the last watch I buy. It is a beautiful, handsome watch that looks fantastic and is a joy to wear. This watch, if you are getting the Japan import, comes in a box, not a tin. If you get a tin then you did not get the Japan import with the sapphire crystal. Don’t get anything less than the Japanese domestic market version. CA is the Canadian version, ER is the European version, CR is the Chinese version (definitely don’t get that). The JF version is what you want. The watch came set to Tokyo time and straight out of the box, without doing any adjustments to it, I checked it against the internet time and it was bang on to the millisecond.

I am a mild prepper. I built a 4.8kw portable solar generator, I have no debt, I have a emergency food supply, I own guns, water filtration, disinfectant and other basic stuff. I think this watch appealed to that part of me. It is solar so I am not dependent on battery replacements (at least not for 10 years). It is as rugged as a watch can be so it is a survivor. It has a compass and other helpful functions crammed into something you wear on your wrist that provides value disproportionate to its size, it is dependable and does it all while looking good!

If you understand the appeal of a Swiss Army pocket knife, if you have ever bought 2 of something so you have a backup if one breaks, if you drive a powerful pick up or something like a Jeep Wrangler, then you are likely someone who “gets” this watch. In that case I say go ahead and get it. You will be glad you did and will have a reliable companion for life.
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28 people found this helpful
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Reviewed in the United States on February 16, 2016
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5.0 out of 5 stars Big, Beautiful, Accurate
Reviewed in the United States on February 16, 2016
Really an amazing watch. First, let me talk about the aesthetics. It is a very handsome watch and obviously well made. It is a considerable step up in quality. This watch is made in Japan, unlike most lower priced G Shocks which are made in China. Everything about it is crisp in detail and just looks great. The sapphire crystal is very nice and the raised numerals on the face really pop in the deep case. Now, having said all of that, it is a really big watch in every way. As you can see from the pic I attached, it is very thick and large in diameter. In one of the pics I have it next to a Marathon JSAR which is a very large watch and the Mudmaster is larger. I also included a comparison shot with a large G-Shock GD-400 for comparison. The Mudmaster is still larger than the GD-400. The nice thing about this watch is that even though it is big, it hugs the wrist nicely and doesn't hang over the wrist. It sits very flat and the "wings" help it wrap around your wrist. I have very average sized wrists and I can wear this watch with no problems.

Now I want to mention the functions/accuracy of this watch:

Accuracy:
As soon as I opened the box I started checking accuracy. The watch hadn't updated to the atomic clock in a month and the time was only off by two seconds. It updated automatically the first night and was dead on when I woke up the next morning. Also, changing time zones is incredibly easy. When the watch arrived it was on Tokyo time. I was able to switch to Mountain Time very quickly. I travel quite extensively for work and the ease of quickly switching between time zones is a big plus for me.

Compass:
When you push the compass button, the second hand becomes the compass needle. I compared it to both my Suunto compass and my iPhone compass and it was perfect. I was very pleased with this and feel that I could trust the compass readings.

Barometer:
I checked the barometer reading against what the current reading was on the weather channel for my area and it was the same. The barometer seems to function well and tracked well over time.

Altimeter:
I checked the altimeter reading versus the known altitude for my house and it was dead on as well. I have not had time to test it while hiking to show elevation gain, but I am pretty confident that it will work as expected.

Lume:
As you can see from the attached pic, the lume is very good. Going from light to dark areas it has good initial lume. It won't last through the night, but the LED light does a good job of illuminating the watch as well. The lume was better than I had expected.

Overall:
While this is an expensive G Shock, you really do get a very rugged yet beautiful watch that is packed with features. If you need a watch that can handle the worst conditions and still keep on working, this is a great choice. Whether you are in an office in America or in a sandstorm on the other side of the world, this watch is a dependable choice. It also works well while wearing gloves. The large knurled buttons work and work well.

One last note. It's big, real big. Make sure that you are the kind of person that can wear a big, thick watch. If you are that person, you won't regret this decision.

UPDATE:
I buy and sell watches all the time. Other than a couple of Rolex watches, I will usually tire of a watch within a year and sell it off. I also will generally wear different watches throughout the week. There is something about this Mudmaster that is special. I can't really put my finger on it, but I find myself drawn to it. I currently have around nine other "nice" watches. Almost every other watch sits in the safe these days. I will switch between this watch and a Rolex Sea Dweller depending on where I'm going, but 90% of the time I'm wearing the Mudmaster.
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222 people found this helpful
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Top reviews from other countries

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Alex C
5.0 out of 5 stars Incredible G-Shock.
Reviewed in Canada on October 1, 2017
19 people found this helpful
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Amazonia
5.0 out of 5 stars カッコいい
Reviewed in Japan on August 7, 2023
5 people found this helpful
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Hormoz
5.0 out of 5 stars They ship it a bit late but they have reasonable prive
Reviewed in Canada on January 4, 2023
コハコウ
5.0 out of 5 stars タフ
Reviewed in Japan on April 9, 2023
3 people found this helpful
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Tat
5.0 out of 5 stars Satisfaction 100%
Reviewed in Canada on September 6, 2022
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Tat
5.0 out of 5 stars Satisfaction 100%
Reviewed in Canada on September 6, 2022
Absolutely love it. Satisfied.
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One person found this helpful
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